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Supporting security

Programmable solutions boost video security systems. By Alexandre Maupas and Jean-Marc Charpentier.

The world of video security is experiencing extensive change and as the mass market grows, so do the technical challenges. These include: reducing the quantity of data transmitted whilst keeping the same level of information; greater operational flexibility, such as bit rate and usage conditions; and interoperability, to allow deployment anywhere.

These challenges are being met by solutions based on digital technologies. Audio/video compression algorithms allow high quality images to be transmitted at low bit rates, whilst high performance programmable solutions offer flexibility and real time digital processing of a multimedia stream. And these applications use a universal communications medium – the internet.

However, whilst video security is retaining its modularity, system intelligence is no longer concentrated in one location. Instead, intelligence is being distributed amongst system peripherals. So, video cameras not only capture video, they also manage audio/video compression, handle streaming over the IP network and take decisions about image resolution – all in real time!

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Graham Pitcher

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